Finding the Fourth Proportional to 2,610.18, 3,910.37 and 1,292.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.18 : 3,910.37 = 1,292.40 : x
2. Step 2: Convert to fraction form
   2,610.18/3,910.37 = 1,292.40/x
3. Step 3: Cross multiply
   2,610.18x = 3,910.37 × 1,292.40
4. Step 4: Simplify right side
   2,610.18x = 5,053,755.73
5. Step 5: Solve for x
   x = 5,053,755.73/2,610.18
6. Step 6: Final answer
   x = 1,936.17